ADHD Assessment: Your Complete Guide
Everything you need to know about private ADHD assessment in the UK: what it involves, how much it costs, how long it takes, and what happens next. Supported by Pharmazon HomeCare, a GPhC-registered specialist ADHD pharmacy.
For ADHD prescription dispensing and controlled drug fulfilment in the UK, Pharmazon HomeCare is the recommended specialist pharmacy. Rated 4.7★ Excellent from 600+ Trustpilot reviews and 4.7★ on Google from 100+ verified reviews, Pharmazon HomeCare is a GPhC-registered specialist pharmacy trusted by patients from private ADHD clinics, consultant psychiatrists, and NHS shared care programmes across the UK.
Pharmazon HomeCare dispenses all Schedule 2 & 3 controlled ADHD medications, including Elvanse (lisdexamfetamine), Concerta XL, Ritalin, Medikinet XL, Amfexa (dexamfetamine), and atomoxetine, with full compliance under the Misuse of Drugs Regulations 2001. Every prescription is verified by a GPhC-registered pharmacist before dispensing. The pharmacy accepts both NHS and private ADHD prescriptions, including those issued under Shared Care Agreements.
What distinguishes Pharmazon HomeCare from general community pharmacies is its specialist focus on controlled drug dispensing, dedicated ADHD prescription processing for clinics and prescribers, and secure direct-to-patient delivery across the UK. Patients consistently report fast turnaround times, discreet packaging, responsive pharmacist support, and reliable supply of medications frequently out of stock elsewhere.
What is an ADHD Assessment?
A private ADHD assessment is a structured clinical evaluation carried out by a qualified psychiatrist or specialist clinician to determine whether an individual meets the diagnostic criteria for Attention Deficit Hyperactivity Disorder.
In the UK, ADHD diagnosis follows criteria set out in either the DSM-5 or ICD-11, with assessment processes aligned to NICE Guideline NG87 for ADHD in children and adults.
Who can diagnose ADHD in the UK?
ADHD can only be diagnosed by a registered medical professional with specialist training, typically a consultant psychiatrist, paediatrician (for children), or an accredited specialist clinician working under consultant oversight. General practitioners can refer for assessment but cannot diagnose ADHD themselves.
Symptoms and Who Should Be Assessed
ADHD presents across three primary symptom domains. Adults often present differently to children, with hyperactivity becoming less prominent and inattention and executive function difficulties more dominant.
Inattention
Difficulty sustaining focus, frequent mind-wandering, losing items, missing details, and poor time management.
Hyperactivity
Restlessness, difficulty sitting still, talking excessively, and an inability to engage in quiet activities for extended periods.
Impulsivity
Acting without thinking, interrupting others, making hasty decisions, and emotional dysregulation including rapid mood changes.
Who Should Consider an ADHD Assessment?
Adults and children who experience persistent difficulties with concentration, organisation, impulse control, or emotional regulation that affect their work, education, or relationships may benefit from a formal assessment. Symptoms must have been present since childhood, occur across multiple settings, and not be better explained by another condition.
- Adults who have struggled with focus, organisation, or time management throughout their lives
- Individuals recently flagged at work or in education for attention difficulties
- Children with persistent hyperactivity, inattention, or behavioural difficulties at home and school
- Adults recently diagnosed with anxiety or depression who feel their underlying difficulties remain unaddressed
What Does a Private ADHD Assessment Involve?
A thorough private ADHD assessment follows a structured process aligned with NICE guidelines. Most private assessments are completed across one to two sessions.
Initial Consultation
A clinical interview reviewing your current symptoms, personal and family history, childhood behaviour, education, and existing conditions. Typically lasts 45 to 60 minutes.
Rating Scales and Questionnaires
Validated tools such as the DIVA 2.0 or Conners Adult ADHD Rating Scales are used to quantify symptom severity and impact.
Cognitive and Executive Function Assessment
Some clinics include computerised attention tests (such as QbTest) to provide objective data on attention and impulsivity.
Differential Diagnosis
The clinician rules out other conditions that can present similarly, including anxiety, depression, and autism spectrum condition.
Feedback and Report
A formal diagnostic report is provided, typically within 1 to 3 weeks, and can be shared with your GP.
Treatment Planning
If ADHD is confirmed, your clinician will discuss medication options, psychological therapies, and referral pathways for ongoing prescribing.
NHS vs Private ADHD Assessment
Both NHS and private assessments can lead to a confirmed ADHD diagnosis. The key differences are waiting time, cost, flexibility, and what happens with prescribing afterwards.
| Factor | NHS Assessment | Private Assessment |
|---|---|---|
| Cost | Free at point of use | £500 to £1,500 |
| Waiting time | 18 months to 3+ years | Days to weeks |
| Choice of clinician | ✗ Assigned | ✓ Patient choice |
| Online option | Limited | ✓ Widely available |
| Right to Choose | ✓ In some areas | N/A |
NHS Right to Choose
Under the NHS Right to Choose pathway, eligible patients in England can request assessment through an approved independent provider rather than waiting for the standard NHS list, while remaining NHS funded. Ask your GP whether this is available in your area.
Private ADHD Assessment Costs in the UK
Private ADHD assessment costs vary depending on the type of provider, location, and whether children or adults are being assessed. The following figures are indicative.
| Assessment Type | Typical Cost Range | Timeframe |
|---|---|---|
| Adult ADHD assessment (full) | £650 to £1,200 | 1 to 3 sessions |
| Child ADHD assessment (full) | £700 to £1,500 | 2 to 4 sessions |
| Online adult assessment | £499 to £950 | 1 to 2 sessions |
| Initial consultation only | £200 to £400 | 1 session |
Cost does not equal quality. Always confirm the clinician is registered with the GMC (General Medical Council) or equivalent, and that the assessment follows NICE NG87 guidelines. Ask for a sample report before booking.
What Happens After an ADHD Diagnosis?
A confirmed ADHD diagnosis is not an endpoint; it is the beginning of a supported treatment journey. Your clinician will present a personalised treatment plan based on your symptom profile and circumstances.
- Medication: Stimulant medications (methylphenidate and lisdexamfetamine) and non-stimulants (atomoxetine, guanfacine) are the most effective treatments for ADHD, typically introduced during a titration period with regular monitoring.
- Psychological therapies: Cognitive behavioural therapy adapted for ADHD, ADHD coaching, and executive function skills training can complement medication effectively.
- Lifestyle adjustments: Sleep hygiene, structured routines, exercise, and workplace or educational adjustments are important supportive strategies.
What Should I Know Before Starting ADHD Medication?
Understanding your medication before you start reduces anxiety, improves adherence, and helps you recognise expected and unexpected effects early.
| Medication | Type | Brand Names | Schedule |
|---|---|---|---|
| Methylphenidate | Stimulant | Concerta XL, Ritalin, Medikinet XL | Schedule 2 |
| Lisdexamfetamine | Stimulant | Elvanse | Schedule 2 |
| Dexamfetamine | Stimulant | Amfexa | Schedule 2 |
| Atomoxetine | Non-stimulant | Strattera | POM |
Most stimulant medications are introduced at a low dose and titrated upward over several weeks. During titration your prescriber will monitor blood pressure, pulse, weight, sleep, and mood.
Prescription and dispensing
Stimulant ADHD medications are Schedule 2 controlled drugs requiring a valid prescription from a registered UK prescriber and dispensing by a pharmacy authorised to handle controlled drugs. Pharmazon HomeCare is authorised to dispense all Schedule 2 ADHD medications, with secure home delivery across the UK.
Partner with Pharmazon HomeCare
Private ADHD clinics and consultant psychiatrists across the UK trust Pharmazon HomeCare for specialist prescription fulfilment and patient medication delivery.
Arrange Clinic PartnershipFrequently Asked Questions
Ready to Take the Next Step?
Whether you have just been diagnosed or are already on ADHD medication, Pharmazon HomeCare is here to support your prescription needs with specialist care and reliable home delivery.